Cone sprocket-wheel.



PATENTED FEB. 14, 1905.

F. L. MORSE.

GONE SPROGKET WHEEL.

APPLIOATION FILED JUNE 12, 1903.

7777/7 eJJeJ No. 782,262. Patented February 14, 1905.

UNTTED STATES ATENT FFICE.

FRANK L. MORSE, OF TITRUBIANSBURG, NEV YORK.

CONE SPROCKET-WHEEL.

SPECIFICATION forming part of Letters Patent No. 782,262, dated February 14, 1905.

Application filed June 12,1903. Serial No. 161,231.

117W! if y (WIMZLJILI l the sprocket-teeth, while the other or larger Be it known that I, FRANK L. Monsn, a citiends extend out to the periphery of the teeth 5 Zen of the United States, residing in 'llrumansof the next step, the notches of which teeth burg, county of Tompkins, State ofNewYork, are extended to the cone-surface. l havealso have invented a certain new and useful lm shown the projection or tooth 19 located on provementin (oneSprocket-\Yhecls, of which the intermediate frusto-conical surfaces and improvement the following is a specification. arranged in line with the corresponding 55 This invention relates to cone sprocketsprocket-teeth of the respective steps. ltwill wheels or pulleys for drive-chains, andhas for 1 be understood that any number of these pro- IO its object to provide means whereby the drivejections or teeth may be placed around the pechain may be readily shifted from one step or riphery, it being preferable to provide at diameter of the wheel to another step for the least three or four arranged at such points 60 purpose of varying the speedof the driveand where the corresponding teeth of the respecwithout stopping the chain. tive steps substantially coincide in the same ln the accompanying drawings, Figure l is line, so that at least one of said projections an end view, and 2 a side view, showing will always be in engagement with an arched achain-driveappliedtoapairofconesprocketlink of the chain while the same is moving wheels embodying my improvement. over the intermediate conical surface from one In the operation of drive-chains formed of step to another. In lieu of the additional links which arch over the sprocket-teeth when teeth or projections notches, such as shown at it is desired to shift the chain from one step 20 on the wheel I, may be cut at the proper of a conepulley to another for the purpose of intervals in the conical surface to be engaged 7 changing the speed of the drive it has heretoby the links of the chain. A convenientmea-ns fore been necessary to stopthe chain and move for forming these notches is a rotary cutter,

the same from one set of sprocket-teeth to the such as indicated by the dotted circular line other. By means of my improvement the 21. Any other means for keeping the chain steps or different rings of sprocket-teeth of revolving as it passes over the inclined sur- 75 the wheel or pulley are connected by interface from one step of the sprocket-wheel to mediate inclined or frusto-conical surfaces another may also be used.

3 provided with projections, notches, or other It will now be seen that by means of my means for engaging the links of the chain, so improvement a drive-chain operating over as to keep the chain revolving at the same time sprocket-teeth may be manipulated in a manthat it runs over the conicalsurface when passner very similar to a smooth belt and ordiing from one step of the sprocket-wheel to the nary cone-pulleys in shifting the same from next. i one set of steps to another for the purpose of As shown in the accompanying drawings, changing the speed of the drive. The archthe chain-drive comprises a chain 1-, formed shaped links of the chain allow a certain lat- 5 with arch-shaped links 2 and running upon a eral movement of the chain upon thesprockctpair of cone-stepped sprocket-wheels Sandi, teeth, so that when the chain is pushed later- 4 having theditferentsteps or rings ofsprocketally for changing the speed the chain slides teeth 5 6 T8 and 9101112, respectively. (he readily onto the conical surface and being steps of the wheel 3 are joined by the interkept revolving by the notches or projections 9 mediate inclined or frusto-conical surfaces 13, thereon readily passes to the next step of the lit. and 15, while the steps of the wheel :1: are wheel.

joined by the frustoconical surfaces 16, 17, Having now described my invention, whatl and 18. On the wheel 3 the smaller ends of claim as new, and desire to secure by Letters the frusto-conical surfaces are oined to the Patent, 1s-- respective steps at substantially the base of l. A cone sprocket-wheel comprising a plurality of steps or rings of sprocket-teeth and intermediate frusto-conical surfaces joining said steps.

2. A cone sprocket-Wheel comprising a plurality of steps or rings of sprocket-teeth and intermediate frusto-conical surfaces joining said steps at the bases of said sprocket-teeth.

3. A cone sprocket-Wheel comprising a plurality of steps'or rings of sprocket-teeth of different diameters, and intermediate frustoconical surfaces joining said steps and having means for engaging the links of a sprocketchain.

4. A cone sprocket-Wheel comprising a plurality of steps or rings of sprocket-teeth of different diameters, intermediate frusto-conical surfaces joining said steps at the bases of the sprocket-teeth and means on said surfaces for engaging the links of a sprocket-chain.

5. A sprocket-Wheel comprising a plurality of steps or rings of sprocket-teeth of different diameters and intermediate frusto-conical surfaces joining said steps and provided With projections for engaging the links of a drivechain.

- 6. A sprocket-Wheel comprising a plurality of steps or rings of sprocket-teeth of diflerent diameters, intermediate frusto-conical surfaces joining said steps and projections located on said surfaces in line With the corresponding sprocket-teeth of the respective steps.

7. In a chain-drive, the combination With a chain formed of arch-shaped links, of cone sprocket-Wheels having a plurality of steps or rings of sprocket-teeth of different diameters and intermediate frusto-conical surfaces joining said steps and provided With means for engaging the arch-shaped links of the chain.

In testimony whereof I have hereunto set my hand.

FRANK L. MORSE. Witnesses:

R. F. EMERY, JAS. B. MACDONALD. 

